Home / 8,381.50-12,554.31-4,420.24

Finding the Fourth Proportional to 8,381.50, 12,554.31 and 4,420.24

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Solution

The fourth proportional to 8,381.50, 12,554.31 and 4,420.24 is: 6,620.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,381.50 : 12,554.31 = 4,420.24 : x
  2. Step 2: Convert to fraction form
    8,381.50/12,554.31 = 4,420.24/x
  3. Step 3: Cross multiply
    8,381.50x = 12,554.31 × 4,420.24
  4. Step 4: Simplify right side
    8,381.50x = 55,493,063.23
  5. Step 5: Solve for x
    x = 55,493,063.23/8,381.50
  6. Step 6: Final answer
    x = 6,620.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.